Raspberry pi - product comparison

Tuesday, November 1, 2016

Raspberry Pi is one of most popular single-board computers are used by student, researcher, DIY hobbyist since it has been released from 2012.
There are several models of Raspberry Pi which is summarized in below tables. Because of reasons: small size, low price, easy for program (linux environment), GPIO support, Internet communication, monitor or touch screen connection, Raspberry Pi has been chosen for DIY project, or just low cost entertainment.

Let's see what Raspberry can support for a project:
(1) GPIO: Those digital input/output can be easily accessed which helps to control (e.g) LEDs, Motors, ...

(2) Communication: with support of UART, I2C, SPI, users can easily communicate with others Raspberry or Microcontroller (e.g PIC, AVR, ...) to extend I/O, or act as slave unit

(3) Memory: since it uses SD card for storage, so users can save a lot of data as wishes like picture, videos





(4) Internet connection: with easy Internet connection by Wifi dongle, project with mobility characters can be done at Raspberry, e.g IP-camera can control view from users far-away, or mobile remote car

(5) Power consumption: Raspberry is powered by 5VDC, which most current usage  is Raspberry 2 B and Raspberry 3 B with 800mA, lowest current usage is Raspberry Zero with 160mA. That's why Raspberry is ideal board for mobile project which can live with recharge battery

(6) Analog I/O: unfortunately, Raspberry doesn't have analog input or output. However, this can be solved by using additional chip: MCP3008 for Analog input, MCP4725 for Analog output
Below table is summarized of Raspberry with their peripheral

Picture
Kết quả hình ảnh cho RASPBERRY PI 1 MODEL A
Kết quả hình ảnh cho RASPBERRY PI 1 MODEL A+
Name
RASPBERRY PI 1 MODEL A
RASPBERRY PI 1 MODEL A+
Date
February 2012
November 2014
Price
25USD
20USD
CPU
700 MHz single-core ARM1176JZF-S
700 MHz single-core ARM1176JZF-S
RAM
256 MB
512 MB
GPIO
8
30
Analog IO
none
none
USB port
1
1
Communication
UART, I2C, SPI, I2S
 UART, I2C, SPI, I2S, PWM
Memory stick
SD, MMC, SDIO
MicroSDHC
Power
5V 300mA
5V 200mA



Picture
Kết quả hình ảnh cho RASPBERRY PI 1 MODEL B
Kết quả hình ảnh cho RASPBERRY PI 1 MODEL B+
Name
RASPBERRY PI 1 MODEL B
RASPBERRY PI 1 MODEL B+
Date
June 2012
July 2014
Price
35USD
25USD
CPU
700 MHz single-core ARM1176JZF-S
700 MHz single-core ARM1176JZF-S
RAM
512 MB
512 MB
GPIO
28
28
Analog IO
none
none
USB port
2
4
Communication
 UART, I2C, SPI, I2S
 UART, I2C, SPI, I2S
Memory stick
SD, MMC, SDIO
 MicroSDHC
Power
5V 700mA
5V 600mA



Picture
Kết quả hình ảnh cho RASPBERRY PI 2 MODEL B
Kết quả hình ảnh cho raspberry pi 3
Name
RASPBERRY PI 2 MODEL B
RASPBERRY PI 3 MODEL B
Date
February 2015
February 2016
Price
35USD
35USD
CPU
900 MHz 32-bit
quad-core ARM Cortex-A7
1.2 GHz 64-bit
quad-core ARM Cortex-A53
RAM
1 GB
1 GB
GPIO
30
28
Analog IO
none
none
USB port
4
4
Communication
 UART, I2C, SPI, I2S, PWM
 UART, I2C, SPI, I2S
Memory stick
 MicroSDHC
 MicroSDHC
Power
5V 800mA
5V 800mA


Picture
Kết quả hình ảnh cho Raspberry Pi Zero V1.3
Name
Raspberry Pi Zero V1.3
Date
May 2016
Price
5USD
CPU
1 GHz ARM1176JZF-S single-core
RAM
512 MB
GPIO
28
Analog IO
none
USB port
1
Communication
 UART, I2C, SPI
Memory stick
MicroSDHC
Power
5V 160mA



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